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takeplace的用法.Geatchangsinourcitysince1999.Thismakesourlifehappierthanbefore.A.hastakenoff.B.tookplaceC.havetakenplace.

题目详情
take place的用法.
Geat changs ______in our city since 1999.This makes our life happier than before.
A.has taken off.B.took place C.have taken place.
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答案和解析
看句意是这些变化从1999发生并一直印象到现在,所以应该用完成时,选C